Potential Losses (HAZUS)

Imagine an earthquake centered in your city or town. Where would the most damage occur? How much economic loss would there be? How many casualties? The Federal Emergency Management Agency (FEMA) has developed software (HAZUS) that models earthquakes in order to estimate potential loss and damage.

Interactive HAZUS Events map

This interactive HAZUS Events Map details epicenters of possible future seismic events based on Maximum Credible Earthquakes (MCE) that have been assigned to specific faults by various entities. Each of the event locations have been analyzed using FEMA HAZUS software and correspond to the HAZUS Reports – Statewide table below. Click on the map link or map image to view full size and select HAZUS events based on location.

HAZUS Reports – Statewide

The reports in the table below analyze potential earthquakes on faults across Colorado. HAZUS software is used to analyze the MCE and magnitudes down to M5.5 on specific faults. The locations of possible future seismic events in this table correspond to the events detailed on the HAZUS Event Map above. They show the total damage from an earthquake across county lines.

HAZUS Reports – Statewide:

Location Epicenter Magnitude 2005: Report 2005: PGA Maps 2013: Report
1882 Rocky Mountain NP -105.74, 40.41 M6.6 Download Download Download
Anton Scarp Dudley Gulch -102.93, 39.60 M7.6 Download N/A Download
Busted Boiler Fault -107.86, 38.24 M6.5 Download Download Download
Cannibal Plateau -107.16, 37.94 M7.0 Download Download Download
Chase Gulch Fault -105.62, 39.00 M6.75 Download Download Download
Cheraw Fault -103.42, 38.28 M7.0 Download Download Download
Cimarron Fault -107.48, 38.41 M6.75 Download Download Download
Frontal Fault -106.16, 39.68 M7.0 Download Download Download
Golden Fault -105.22, 39.74 M6.5 Download Download Download
Goodpasture Fault -104.91, 38.05 M6.0 Download Download Download
Mosquito Range -106.16, 39.38 M7.0 Download Download Download
N Sangre De Cristo Fault -105.63, 37.90 M7.5 Download Download Download
N Sawatch Range Fault -106.39, 39.15 M7.0 Download Download Download
Rampart Range Fault -104.92, 39.06 M7.0 Download Download Download
Rocky Mountain Arsenal -104.90, 39.90 M6.0 Download N/A N/A
Rocky Mountain Arsenal -104.90, 39.90 M6.25 Download Download Download
Roubideau Creek Fault -108.19, 38.41 M5.5 Download Download Download
S Sawatch Fault -106.18, 38.75 M7.25 Download Download Download
Ute Pass Fault -105.00, 38.92 M7.0 Download Download Download
Valmont Fault -105.20, 40.03 M5.0 Download Download Download
Walnut Creek Fault -105.15, 39.88 M6.5 Download Download Download
Williams Fork Mountains -106.15, 39.87 M6.75 Download Download N/A

Damaged residence in Segundo where the façade has crumbled and pulled away from the main structure during the Trinidad 5.3 Mw earthquake

Large bookcases were toppled over from the 5.3 Mw Trinidad earthquake. The resident reported S-N movement. Segundo, CO.

HAZUS Reports – by County

The reports below have been generated for all Colorado counties using HAZUS software and specifying different earthquake magnitudes along known fault lines. The Worst-Case reports use the maximum magnitudes that can be generated along a fault of any given length, as calculated by Wells and Coppersmith (1994). These reports inform policy makers, emergency managers and responders of the consequences of an earthquake within each county. Counties can suffer damage even if the fault is located completely outside the county. Because the scientists who generate the National Seismic Hazards Map recognize that we don’t know as much as we would like about when or where an earthquake will strike, the USGS uses a “Random Earthquake” of magnitude 7.0. Therefore, we ran a “Random Earthquake” scenario for each county with a magnitude 7.0 event essentially in the geographic center of each county.

HAZUS Reports – by County:

County 2005: Worst-Case Results 2005: Random Scenario 2013: Reports
Adams Download Download Download
Alamosa Download Download Download
Arapahoe Download Download Download
Archuleta Download Download Download
Baca Download Download Download
Bent Download Download Download
Boulder Download Download Download
Chaffee Download Download Download
Cheyenne Download Download Download
Clear Creek Download Download Download
Conejos Download Download Download
Costilla Download Download Download
Crowley Download Download Download
Custer Download Download Download
Delta Download Download Download
Denver Download Download Download
Dolores Download Download Download
Douglas Download Download Download
Eagle Download Download Download
El Paso Download Download Download
Elbert Download Download Download
Fremont Download Download Download
Garfield Download Download Download
Gilpin Download Download Download
Grand Download Download Download
Gunnison Download Download Download
Hinsdale Download Download Download
Huerfano Download Download Download
Jackson Download Download Download
Jefferson Download Download Download
Kiowa Download Download Download
Kit Carson Download Download Download
La Plata Download Download Download
Lake Download Download Download
Larimer Download Download Download
Las Animas Download Download Download
Lincoln Download Download Download
Logan Download Download Download
Mesa Download Download Download
Mineral Download Download Download
Moffat Download Download Download
Montezuma Download Download Download
Montrose Download Download Download
Morgan Download Download Download
Otero Download Download Download
Ouray Download Download Download
Park Download Download Download
Phillips Download Download Download
Pitkin Download Download Download
Prowers Download Download Download
Pueblo Download Download Download
Rio Blanco Download Download Download
Rio Grande Download Download Download
Routt Download Download Download
Saguache Download Download Download
San Juan Download Download Download
San Miguel Download Download Download
Sedgewick Download Download Download
Summitt Download Download Download
Teller Download Download Download
Washington Download Download Download
Weld Download Download Download
Yuma Download Download Download

REFERENCES:

Widmann, Beth L.and Kirkham, Robert M. and Rogers, William P. (1998), Preliminary Quaternary Fault and Fold Map and Database of Colorado; Colorado Geological Survey, Open-File Report 98-08